05-12-2019, 08:22 AM
(05-12-2019, 02:44 AM)peterpil19 Wrote: When using the fuzzy select tool, why after feathering do selected areas outside the main selected area dissapear (screenshot 1) only to reappear when copying and pasting (screenshot 2 - circled).A feathered selection means the selection is not binary. Pixels can be partially selected, ranging from 0% to 100% selected. The visible selection boundary (marching ants) indicates the 50% selected boundary. So you can have pixels that are 40% selected with no visible selection boundary. Don't use a feathered selection.
Quote:Or is there a way to remove ALL selections outside the main selected area?You could try the selection tools with mode set to "Intersect with current selection". Make a rough selection and then select again with "Intersect with current selection" to refine the selection.
A grey coin on a grey background is never going to be plain sailing. Try photographing with a contrasting colour eg a green with no texture.
I am not sure if the jpg compression artifacts are in the original or just in the screenprint for the forum. These can also give problems.
The best way to remove a background is to
1) Make a selection and delete the background.
2) Grow the selection by 1 or 2 pixels
3) Use Colors > Color to Alpha to remove the background from the boundary between the coin and background. Change the default white to the background colour.